Question

what happens to a cathode ray in a magnetic or electric field? it bends toward a positive charge. it stops moving. it becomes heavier. it disappears.

Explanation:

Cathode rays are streams of electrons. Electrons are negatively - charged particles. Opposite charges attract. In an electric field, a negatively - charged cathode ray will be attracted to a positive charge, causing it to bend toward the positive charge. In a magnetic field, the cathode ray also experiences a force (Lorentz force) which can cause it to bend.

Answer:

It bends toward a positive charge.